Database Systems MCQs – Practice Test 17 (Chapter 15)

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Introduction to SQL MCQs – Practice Test 17 PDF Download

MCQ 81: A delete command operates on:

Multiple relations
2 relations at a time
One relation only
Multiple attributes

MCQ 82: SQL has clearly established itself as the standard relational:

Database process
Database language
Database storage
Database manager

MCQ 83: The with clause makes the query logic:

Complex
Difficult to implement
Difficult to access
Clearer

MCQ 84: The collection of the values may be empty in the result of ignoring:

Null values
Aggregate functions
Distinct clause
Boolean values

MCQ 85: The result of Boolean expression 'unknown or unknown' is:

True
False
Unknown
Null

Database Systems MCQs App & e-Book – Introduction to SQL Study Guide

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